8120115 has 16 divisors (see below), whose sum is σ = 14436000. Its totient is φ = 4330656.

The previous prime is 8120113. The next prime is 8120117. The reversal of 8120115 is 5110218.

It is an interprime number because it is at equal distance from previous prime (8120113) and next prime (8120117).

It is not a de Polignac number, because 8120115 - 2¹ = 8120113 is a prime.

It is a super-2 number, since 2×8120115² = 131872535226450, which contains 22 as substring.

8120115 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8120113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29940 + ... + 30209.

It is an arithmetic number, because the mean of its divisors is an integer number (902250).

Almost surely, 2^8120115 is an apocalyptic number.

8120115 is a deficient number, since it is larger than the sum of its proper divisors (6315885).

8120115 is a wasteful number, since it uses less digits than its factorization.

8120115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60163 (or 60157 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 8120115 is about 2849.5815482277. The cubic root of 8120115 is about 200.9959901183.

The spelling of 8120115 in words is "eight million, one hundred twenty thousand, one hundred fifteen".